Improvement in machines for setting temple-teeth



2 Sheets--Sh:ee1 1.

N. CHAPMAN. Machine for Setting Temple-Teeth. N0.l68,719.

Patented Oct. H, 1875.

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NPETERS, PHOTOiITHOGRAFflER, WASHINGTON, D C.

2 Sheets s heet 2. N; CHAPMAN;

Machipg for Setting Temple-Teeth. No.l68,-719.

Patented Oct. 11, 1875.

Witnesses. lvwenibr:

NJ ETERS. PNOYO-Ll aGRAPMER, WASHINGTON, D c.

UNITED STATES PATENT Breton NATHAN CHAPMAN, OF HOPEDALE, MASSACHUSETTS.

IMPRQVEMENT IN MACHINES FO R SETTING TEMPLE-TEETH.

Specification forming part of Letters Patent No. 168 .7] 9, dated October 11, 1875; applicatipn filed September 9, 1875.

To all whom "it may concern:

Be it known that I, NATHAN CHAPMAN, of Hopedale, in the county of Worcester and- State of Massachusetts, have invented certain new and useful Improvements in Machines for Setting Teeth in Rollers for Loom Temples 5 and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawing, and to the letters of reference marked thereon, which form a part of this specification. 4 i

My invention consists of aflexible automatic forceps for receiving the temple-teeth andcarrying them forward into a proper position to be inserted by an automatic punch, and also in a drill and many other devices, all operated in the same machine, and which will be fully understood by the following description.

In the accompanying drawings, Figure 1, Sheet 1, is a front view of my machine. Fig. 2 is a side view of the same; Fig. 3, Sheet 2, is atop view. Fig. 4, Sl1eet2, is abirds-eye view,

with the top plate and some other parts removed in order to show the working parts. Fig. 5, Sheet 2, is a view of a roller with the tecth all set in place. Figs; 6, 7, 8, 9, and 10, Sheet 2, are detached views of the cams and other devices.

In the construction of my machine the frame may be of any suitable form 5 but I prefer to make it as seen in Figs. 1 and 2 at A. This frame is crowned by a table, B, and provided with a platform, (3, both of which serve for at.- taching and supporting the machinery. On

thelower part of this frame is a horizontal shaft, '1), having a band-pulley, F1, for supplying power, and also a pinion, F,which gears into the cog-wheel G, thus transmitting motion to the shaft H- and the series of cams thereon, as will be best seen in Fig. 2 at I, K, L, M, and N, the action of which will be hereafter separately explained. This shaft D also carries a band-wheel, O, which gives motion to the shaft P, and, by means of a second hand, Q, operates the drill S, for boring holes in the roller T, for inserting the teeth, as will'be soon de scribed.

The action of the five cams above mentioned J sliding lifter 0, Fig. 1.

its forward motion.

may be understood from the following brief description: The first cam I, Figs. 7 and 2, is in- This cam operates, in connection with a slotted arm, n, Figs. 7 and l, a lever, j, a spring,

m, pawl k, and ratchet wheel I, to turn the This ratchet-wheel I has an interior pin working in a slot in the slidinglifter 0, so that the latter may rise and fallindependently of the wheel. The second cam K, Figs.9and 2,raises the slide or lifter O and roller T at the proper time, while the coiled sprin g p pushes them down again when releasedv by the rotation of the cam. The third cam L, Figs. 10 and 2, pushes forward thefltwo slides W and X,Fig.4. This cam acts in connection with the two leversY and Z, and the links s and t, attached to the slides, which are drawn back by the coiled springs to and b when released by the cam. One of these slides is horizontal, and the other is set obliquely, in order to give the proper pitch to the drill S in making the hole for the tooth. As the drill works in making the hole the slide W holds the roller T in place, and prevents it from springing off from the drill. The fourth cam M, Figs. 2 and 8, moves back the slide 0, elbow-lever w, and slide a, Fig. 4, which carries the forceps o. This cam acts upon this slide by means of another slide, 0, elbow-lever w,

and the connecting-rod as. Acoiled spring, J,

Fig. 4, serves to pull the slide a and forceps forward when released by the cam M. This forceps 'v is flexible, and has a round hole between the closed jaws. This hole is a little smaller than the wire of which the tooth is made, so as to grasp and firmly hold the tooth. The shank of the forceps has a small pin, y, Fig. 4, which works against a cam, z, and. thus gives the forceps a quarter-turn as it. moves back; and the opposing coiled spring h, Fig. 4, gives the forceps a reverse quarter-turn in This same cam M also gives motion to the feed-wheel V by means of a lifting-arm, f,'on the top of slide 0, which arm moves the elbow-lever i and pawl d, thus turning the feed-wheel V through a fraction of a revolution, or the distance between two feedholes, 0', in the circumference of the wheel. The fifth cam M raises the slide b, with its arm d,'and thus raises the punch c, and holds it clear of the feed-wheel V until the proper time to charge the forceps 'u, when the action' of the coiled spring 0 brings down the slide or. lifter b and the punch c",- which thus pushes 'holes 0 in'the feed-Wheel being supplied with.

blank teeth ready for insertion, the machine maybe set in motion. The drill S makes a hole in the.rol1er T, the, slide X slowly advancing to the work by the action of the cam M, as above explained. The oblique position of the drill gives the proper-pitch to the hole. Atthe same time the slide W comes forward to hold the roller T, and prevent it from swinging off i from the drill. At the next step the forceps 01 comes forward, bringing a tooth, and also making a quarter-turn, as above explained, and thus presenting a tooth in front of the hole in the roller, and also in position for the point of the punch?" to enter the jaws of the forceps,

and push the tooth into the roller while the for-- ceps is opened by the advance of the punch. Now, the forceps returns With a reverse quarter-turn to receive the next tooth from the feed-wheel V.' As the Work' progresses the roller T is moved a partial revolution by the caln'I and other devices,'as above explained, and thus the teeth are set spirally around the vroller, one series of teeth extending one-half the circumference of the roller, as seen in Fig. 5.

Having thus described my invention,Iclaim' 1. The forceps v, for receiving the teeth and carrying them forward for insertion into the roller T, substantially as set forth.

2. The drill S and punch r, mounted upon the slide X, and operating substantially in the mannerand for the purposes set forth.

3. The arrangement of the feed-wheel V, the forceps 'v, and punch 1', for operating in combination, and automatically setting teeth, substantially as set forth.

4. The in termittin gly-reciprocating slide W,

for holding the roller T, substantially as and for the purpose specified.

5. The cam M, slide 0, elbow-lever w, link 00, and slide a, all arranged for moving the forceps, substantially as set forth. 7 V

6. The cam z and pin Q for giving a quarterturn to the forceps, substantially as set forth.

7. The cam N, slide 1), arm d, and punch 0, for pushing the teeth into the forceps, as described.

8. The cam K, slide 0, ratchet-Wheel l, and pawl k', for moving the roller T as the teeth are inserted, substantially as set forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses."

NATHAN CHAPMAN.

Witnesses LEANDER HOLBROOK, LEANDEE HOLBROOK, Jr. 

